and 17 are endemic to the country.” These figures illustrate why central Mexico, with its volcanic highlands and isolated freshwater habitats, has acted as a cradle for independent salamander lineages over millions of years. The extinct Santa María...

recorded by the satellite rather than on in‑situ measurements. A 2001 study in the New Zealand Journal of Marine and Freshwater Research used satellite ocean‑color data to map phytoplankton in the region and linked the same turquoise signal to recurring...

dead parasites became an unexpected dataset. A 1921 label from a Seattle‑based canned fish distributor. Image Credit: Freshwater and Marine Image Bank/University of Washington Libraries From Shelf Stock to Ecological Archive The donation comprised 178...

largely unglaciated coastal strip rather than a landscape locked under ice. Animal bone fragments. Credit: Sam Walker Freshwater fish recovered from the same layers indicate the existence of rivers and lakes flowing through the surrounding tundra,...

Nature Geoscience The loss of oceanic moisture would also trigger severe aridity across interior regions, curtailing freshwater supplies and suppressing vegetation. Traditional mammalian coping strategies—hibernation or long‑distance migration—would...

waning rains, Bhirrana’s occupation continued uninterrupted. Animal remains from the wetter early layers include abundant freshwater fish, turtle shells, and domestic buffalo—species that thrive in well‑watered environments. Later layers show fewer of...

the worms within the order Tricladida, specifically the group Maricola. While most known members of this group inhabit freshwater or shallow coastal environments, the presence of these embryos in the deep abyss suggests that this lineage may have...

rare, potential insights into the behavioral patterns of these early hominins. Cut marks identified on the bones of freshwater turtles and large mammal limbs suggest the systematic processing of carcasses and the extraction of marrow. Furthermore, the...

kilograms, are well-known for their engineering capabilities. According to a 2020 profile from the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group, they excavate elaborate underground shelters that can extend up to 15 meters in length. By...

wanted to see whether the meltwater could refreeze, since it comes into the ocean with temperatures below zero, below the freshwater freezing point.” Glacier survey schematic revealing sediments, marine life, and hidden activity beneath the ice. Credit:...

with a middle-class 18th-century lifestyle, composed mainly of Central European grains, animal products, and possibly freshwater fish. His skeleton showed no significant signs of chronic heavy labor, indicating the vicar likely led a sedentary life. A:...

lie in the tiny, preserved corpses of parasites. A 1921 label from a Seattle-based canned fish distributor. Image Credit: Freshwater and Marine Image Bank/University of Washington Libraries Biological Indicators of Ecosystem Stability The research...

seasonal monsoon shifts once pushed deep into the Arabian interior, creating expansive grasslands and permanent freshwater lakes. Alathar was one such oasis, serving as a critical resource for both wildlife and wandering human groups. The Alathar...

First came the birds, then a lost lake returned to swallow vast stretches of farmland, reshaping the landscape in a dramatic environmental transformation. By the spring of 2023, the arid landscape of California’s San Joaquin Valley had undergone a...